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Thanks Zack - I have many priorities right now but something to work on. The auxiliary source note says 12 volts at 120 watts. The voltage is 14.6 on the volt meter when the car is running. I will put the scope on it sometime to see what it looks like. I have looked for more info on this but find non as yet. If you have any ideas what I can do please let me know. Ralph Ohm - K0HLB

Thanks - I will make sure I know where the fuse is located and have a spare. I was thinking more about the issue as follows:
1. You are correct - I need to have some circuitry to limit the current when the vehicle first starts up - perhaps with just a current delay before the charger is first energized. I have made couple of 12 volt chargers that only apply about 500 ma max to the battery and when the battery is fully charged the current is reduced to just a trickle. What if I used a similar circuit only left off the 120 volt to 16 volt ac transformer and rectifier to dc replacing with the 12 volt from the power outlet. Seems to me that would work? K0HLB - Ralph

I usually operate a 2 meter radio in my Honda Pilot by installing a SLA battery in the back for 12 volt powering. I then take the battery to ghe garage on occasion for charging. I have an auxiliary 12 volt power outlet in the back that is energized when the switch is on. How can I charge the battery from this power supply? R.O. K0HLB